# Blockcerts verifier requires api key?

**URL:** <https://community.blockcerts.org/t/blockcerts-verifier-requires-api-key/2882>\
**Category:** Technical\
**Created:** [June 7, 2021, 6:33am UTC](https://community.blockcerts.org/t/blockcerts-verifier-requires-api-key/2882 "2021-06-07T06:33:02Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![testemailid9101](https://avatars.discourse-cdn.com/v4/letter/t/edb3f5/32.png) [@testemailid9101](https://community.blockcerts.org/u/testemailid9101)\
**Post date:** [June 7, 2021, 6:33am UTC](https://community.blockcerts.org/t/blockcerts-verifier-requires-api-key/2882/1 "2021-06-07T06:33:02Z")

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Does block certs verifiier [GitHub - blockchain-certificates/blockcerts-verifier: A Blockcerts verifier and viewer](https://github.com/blockchain-certificates/blockcerts-verifier) requires api key?

when i run it to verify transaction it returns transaction for the first time but for some reason it again tries to fetch transaction data and gets “MAX limit reached use API key”.

Is there way the apikey can be configured or added in blokccerts verifier?

 ![image](https://us1.discourse-cdn.com/flex016/uploads/blockcerts/original/1X/b80d79071382dd215b261ca2e58da6e6ab36462f.png)

![found1](https://us1.discourse-cdn.com/flex016/uploads/blockcerts/original/1X/8713ddda45cc9b395056f7041aa085c2c1558421.png)

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**Author:** ![lemoustachiste](https://avatars.discourse-cdn.com/v4/letter/l/7c8e57/32.png) [@lemoustachiste](https://community.blockcerts.org/u/lemoustachiste)\
**Post date:** [June 7, 2021, 11:40am UTC](https://community.blockcerts.org/t/blockcerts-verifier-requires-api-key/2882/2 "2021-06-07T11:40:32Z")

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Yes: [GitHub - blockchain-certificates/cert-verifier-js: Javascript library for verifying Blockcerts Certificates](https://github.com/blockchain-certificates/cert-verifier-js#explorerapis)

Here is an example on how you would pass that information to the HTML component: [blockcerts-verifier/explorer-api-overwrite-default.html at master · blockchain-certificates/blockcerts-verifier · GitHub](https://github.com/blockchain-certificates/blockcerts-verifier/blob/master/demo/explorer-api-overwrite-default.html)

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**Author:** ![testemailid9101](https://avatars.discourse-cdn.com/v4/letter/t/edb3f5/32.png) [@testemailid9101](https://community.blockcerts.org/u/testemailid9101)\
**Post date:** [June 7, 2021, 11:58am UTC](https://community.blockcerts.org/t/blockcerts-verifier-requires-api-key/2882/3 "2021-06-07T11:58:07Z")

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great thanks it worked really!!